JPH0218208B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an ant in which two tiles each having a dovetail-shaped leg protruding from the back side are formed face-to-face, integrally molded, fired, and then divided into two separate tiles. This relates to a manufacturing method for two-split tiles with dovetail-shaped legs, which can improve the workability of each step in the manufacturing process, have high precision with little deformation or distortion, and are easy to install. This invention relates to a method for manufacturing split tiles.

Conventionally, this kind of two-split tile utilizes the protruding end surfaces of the dovetail legs, and the protruding end surfaces of the back surfaces of the facing tiles are joined directly or through a connecting part to form an integrated two-piece tile main body. are doing.

Therefore, in such a two-sheet joining method, an irregularly protruding divided cross section is left on the protruding end surface due to the division after firing.

However, in recent years, there has been a strong demand for resource saving and low cost, so the mortar layer used to bond tiles to walls, etc., has tended to be coated thinly. There are limits to thin coating, and the thicker the coating, the more difficult it is to adjust the parallelism of the tile surface, and the easier it is for adjacent tile surfaces to become uneven, making the installation process more difficult and requires skill. was.

Furthermore, since such an irregular divided cross section greatly affects the stacking length during packaging, there have been other inconveniences such as the inability to obtain packaging boxes of appropriate dimensions.

Therefore, in Japanese Patent Application No. 51-43998 (Japanese Unexamined Patent Publication No. 52-126411), the present applicant previously formed a two-ply tile main body using legs with thin bases at both ends in a concave surface appropriately provided on the back side of the tile. proposed a method to do so.

However, according to this method, irregular split sections do not occur on the protruding part on the back side of the tile, making work during construction extremely easy. However, since the bases at both ends of the legs are made thin, It is difficult to firmly hold the tile main body after the main body is formed, and it may bend from both end bases during the transition to the firing process or during firing, or the tile main body may be easily deformed or distorted. This is causing problems.

Therefore, in view of the problems that have arisen with the conventional methods for manufacturing halved tiles, the present invention has been developed to be able to firmly hold the tile body until the firing is completed, improve workability in each process, and deform the tile body. High-precision tiles can be manufactured with low distortion and distortion, and no irregular split cross-sections are left on the protruding end surface of the dovetail legs on the back of the tile, making installation work extremely easy even for non-skilled workers, and packaging work is also easy. The purpose of this work was to provide a method for manufacturing dovetail-shaped 2-split tiles with legs that could be optimized and made uniform, and its gist is as follows.

That is, the gist of the present invention is that when manufacturing a 2-split tile with dovetail legs, an arbitrary surface between the dovetail legs is provided in an appropriate number at symmetrical positions on the back side of both tiles that are facing each other. a joint part that protrudes upward and has a bulge in the center thereof to be sheared inside the protruding end face of the dovetail leg; and a joint part that protrudes from the protruding end face of the dovetail leg at both ends of the tile; Both tiles are joined by a joint portion in which a notch is formed to be sheared so as to gouge the protruding end face, and a two-ply tile main body is formed and fired, and then an impact is applied to the two-ply tile main body to The purpose is to divide the main body of the two-ply tile into two separate tiles by shearing and removing the joint.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the gist of the present invention described above, an embodiment of the method for manufacturing a dovetail-shaped leg split tile according to the present invention will be described below with reference to the drawings.

First, a two-ply tile main body (hereinafter simply referred to as tile main body) P is extrusion molded.

As shown in FIG.
Connect two tiles 1 and 2 with protruding parts 3 and 4.
It has a structure in which it is placed face-to-face and integrated through a and 4b.

The connecting portion 3 connects the tiles 1 and 2 by protruding from each surface (not necessarily provided on all of the surfaces) between the dovetail legs 11 and 21, and The dovetail legs 11, 21 are formed to have a bulging portion 31 that bulges from inside the extension line l of the projecting end surfaces 111, 211 so as to be divided inside the projecting end surfaces 111, 211. There is.

In addition, the connecting parts 4a and 4b are dovetail-shaped legs 11a and 11 that protrude from both ends of the tiles 1 and 2, respectively.
b, 21a, protruding end surfaces 111a, 111 of 21b
b, 211a, 211b, and are cut 11 to be sheared by gouging out the protruding end surfaces 111a...
2a, 112b, 212a, 212b.

The tile main body P formed into such a structure is
Next, it is fired in a kiln.

After firing, when an impact is applied using a wooden hammer or the like as shown in FIG. 3, the joints 3, 4a, 4b
is sheared and removed to form two tiles 1 and 2 as follows.

That is, when an impact is applied in the lateral direction as shown in the figure with a wooden hammer or the like, the joint 3 is sheared at the inner side where the strength is weaker than the bulge 31 due to the shearing force caused by the impact, and the joint 3 is At 4a and 4b, the respective protruding end surfaces 111a... are sheared so as to gouge them through the cuts 112a..., and the tile main body P is divided into two mutually separate tiles 1 and 2.

Note that the split cross section S produced by the shear splitting of the joint 3 and the split cross sections Sa and Sb produced by the shear split of the joint 4 are both similar to the dovetail leg part 11.
It will be formed inside the protruding end surface 111 of....

Therefore, if the above manufacturing method is used,
It has the following excellent effects:

(1) The joints 3, 4a, and 4b are thicker than conventional joints, and can be made in large numbers, so they can firmly hold the tile body, and thus each process until the completion of firing. There is no risk of deformation due to transportation, etc., making it convenient to work with, and it is also difficult to cause deformation or distortion during firing.

In this way, its workability is significantly improved,
High-precision tiles can be easily formed.

(2) Also, in order to facilitate shearing of the joints 3, 4a, 4b, the bulges 31 or the notches 112a...
As shown in FIG. 3, by striking either tile 1 or 2, the joints 3, 4a, 4b can be sheared off, and the tiles can be easily divided by shearing.

At this time, the bulging portion 31 connects the connecting portion 3 to the protruding end surface 11.
1,211 by bulging from the inside from the extension line l, and the joint parts 4a and 4b are provided with notches 112a that bite into the dovetail legs 11a, so that the divided tiles 1 , 2, the protruding end surfaces 111... of the dovetail-shaped leg portions 11... on the back surface of 2 do not have any irregular split sections S, Sa, Sb (see Fig. 4), and the split cross sections S... are the same as the protruding end surfaces 111...
It will be sheared more inwardly.

Therefore, as is clear in FIG. 4, the projecting end surfaces 211 of the dovetail legs 21a, 21, 21b
a, 211, 211b, that is, the back surfaces of the tiles are aligned as a uniform smooth surface, making it extremely easy to adjust the parallelism to the wall surface during construction, making the construction work extremely easy, and making the mortar for adhesion as thin as possible. This enables resource saving and inexpensive construction.

Furthermore, since the external dimensions of the tiles 1 and 2 are all constant, it is extremely effective in standardizing and simplifying the packaging work and materials.

In the above embodiment, the joints are provided between all of the dovetail legs as shown in the figure, but it goes without saying that it is not necessary to provide them between all of the dovetail legs. The shape of the tile according to the present invention may be arbitrarily determined within the scope of achieving the above-mentioned objects, functions, and effects of the present invention, such as that it is not necessary to form the tile into a circular shape, and any of these changes are not covered by the present invention. Needless to say, this does not change the gist of the document in any way.

As is clear from the above description, according to the present invention, the above-mentioned problems that have arisen in the conventional method for manufacturing bisected tiles can be solved very simply and effectively. It must be said that the benefits brought about by this are extremely large.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a perspective view showing the extrusion-molded two-ply tile main body when carrying out the method of the present invention, FIG. FIG. 4 is a front view of the tile, and FIG. 4 is a perspective view of the sheared tile. 1, 2...Tile, 3, 4a, 4b...Joining part, 11, 11a, 11b, 21, 21a, 21
b, ... dovetail leg, 31 ... bulge, 111,
111a, 111b, 211, 211a, 211
b...protruding end surface, P...mainly two-ply tiles.

Claims (1)

[Claims] 1 A two-part tile structure in which two tiles are placed face-to-face through a joining part to form an integral two-ply tile main body, which is then fired and then divided into two separate tiles. In the manufacturing method, a suitable number of dovetail legs are provided at symmetrical positions on the back side of both tiles that are facing each other, and the dovetail legs are provided on an arbitrary surface between the dovetail legs. a joint having a bulge in its center to be sheared;
The dovetail legs on both ends of the tile protrude from the protruding end surfaces,
A step of forming a two-ply tile main body by joining both tiles together with a joining portion in which a cut is formed to be sheared so as to gouge the protruding end surface, and firing the two-ply tile main body after the forming step. and a step of dividing the two-ply tile main body into two separate tiles by applying an impact to the two-ply tile main body to shear and remove the joint after the firing step. A method for manufacturing a halved tile with dovetail legs, characterized by the following.